Riveting device



May 12, 1925. j 1,537,610

G. HUBER RIVETINGDEVICE Filed May 14, 192.4.

Patented May 12, 1925.

UNITED STATES;

' GUSTAVUS HUBER, OF'NASHVILLE, TENNESSEE.

RIVETING DEVICE.

Application filed May 14, 1924. Serial-No. 713,275.

To all whom 2'25 may concern:

Be it known that I, GUSTAVUS HUBER, a citizen of the Republic of Cuba, residing at Nashville, Vanderbilt University, in the county of Davidson and State of Tennessee, have invented certain new and useful Improvements in a Riveting Device, of which the following is a specification.

This invention relates to new and useful improvements in riveting devices and is more particularly adapted to a means whereby a rivet may be securely fastened to the article with which it is associated in a simple and efficient manner.

One of the important objects of the present invention is to provide a riveting device of the above mentioned character, which is especially adapted for use in the sealing of envelopes so as to prevent any unauthorized person from tampering with the contents thereof without leaving any visible means to indicate such action.

A further object of the invention is to provide a riveting device of the above mentioned character, wherein the parts are of such construction as to render the sameto be readily disassembled or adjusted without the loss of time or labor.

A further object is to provide a riveting device of the above mentioned character, wherein means is provided for holding a rivet in position so as to facilitate the upsetting or clenching thereof in a positive and efficient manner. Q

A still further object is to provide a riveting device of the above mentioned character, which is simple in construction, inexpensive, strong and durable and furthermore adapted for the purposes for which it is designated.

Other objects and advantages of this invention will become apparent during the course of the following description.

In the accompanying drawing forming a part of this specification and in which like numerals designate like parts throughout the same: i

Figure 1 is a perspective view of my improved riveting device. I j

Figure 2 is a plan view of the anvil end of the curved lever.

Figure 3 is a fragmentary sectional view of the free end of the pivoted lever showing the rivet supporting and upsetting means associated therewith.

Figure 4 is a detail perspective view of the rivet, and

Figure 5 is a perspective view of a modifi+ cation showing a hand. stamp with a rivet upsetting means carried thereby.

In the drawingwherein for the purpose of illustration is shown the preferred'embodiment of my invention, the numeral 1 designates generally a curved lever and the same includes the solid portion 2 and the tubular portion 3 which is adapted toreceive the forward end of the solid portion 2 in the manner clearly shown in Figure 1 of the drawing. The forward end ofthe tubular portion '3 terminates in the solid portion a and has its end flattened as illustrated at 5 and provided witha cavity such as is shown at 6 on each side thereof.- This construction forms-what is termed as an anvil and the purpose of which will'herein after be more fully described.

For the purpose of holding the section in any desired adjusted position, I providethe forward end of the solid portion .2 with protuberances such as shown at- 7 in the upper portion thereof and the same are adapted to cooperate with similar shaped sockets shown at 8 and arranged in the upper portion of the tubular portion of the section3. V I The rear end of the curved lever 1 is pro-, vided with an extension such as is shown at 9 to provide a suitable-handle and the same is preferably formed adjacent the extreme outer endof themember 2 'in the manner clearly illustrated in Figure 1. I

Pivotally supported on the outer rear.

end of the portion 2 of=the curved 'lever' 1 adjacent the handle 9 is the substantially straight lever designated generally by the numeral 10. The pivoted, lever 10- comprises the bar 11, the rearportion of which is provided with an enlarged head 12, the latter-having an opening therein to receive the outer end of the rear portion 2 'of the curved lever 1 whereby. thebar 11 may be pivotally supported on the. same. The forward end of the'bar ll'is adapted to extend into the :tubular member '13and for the puri pose of holding the bar and tubular member in any desired adjusted position, I provide the bar 11 with protuberancessimilar to the f protuberances 7 formed onthe forward end.

of the portion 2 of the curvedllever 1 and ,coacting' sockets. in the tubular member 13.

The outer end of the tubular portion, 13

of the pivoted lever is flattened as shown at let and is provided with an enlarged eye such as is shown at,15:in which is supported.

intermediate its ends the sleeve 16. The.

sleeve is of such a diameter as to snugly-receive the rivet 17, the construction of which is clearly illustrated in Figures-3 and 4 of the drawing.

,plungerhead 19 being provided on the upper endthereof whereby the 'same may be actuated in the manner hereinafter to be more fully described. For the purpose of normally keeping the plunger in an inoperative position, I'Jprovide, the coil spring ,20 which encircles the plunger and is disposed betweenthe plunger head 19 and the'upper edge of the cylinder or sleeve 16 in the manner clearly illustrated in Figure 3 of the drawing. The forward end of the pivoted lever 10 is adapted to swing into cooperative relation with the forward end of the curved lever 1 in the manner to be presently described. I

1 A coil spring such as is shown at 21 is disiposed around the rear 'end of the curved lever andv is disposed between the enlarged head 12 of'the pivoted lever 10 and a suitablecotteru pin 22 which' exte'nds through a transverse opening provided in the outer erear end, of the curved lever in the manner clearly illustrated in Figurel. The purpose of this spring is to normally hold the [pivoted lever in frictional engagement withj the handle portion so asto prevent the relatively free swinging movement of the pivoted lever on the rear end of the curved lever." v I In sealing the flaps of an envelopefthe forward endof the curved "lever is inserted within the envelope beneath the folded fiap fat the intersection thereof with each other andl'a rivet isplaced inthe lower portion of the sleeve or cylinder 16. The loose flap is i i then placed in position ready'for' sealingand thefplunger head .19 is pushed downwardly causing the plunger 18 to exert a downward pressure on the head of the rivet 17 disposed in the lowerportion of the sleeve and forcingthe same through the flap of the envelope, the pointedends of the rivet being received in the concaved portion 6' which provides an anvil iwherebythe rivet will be upset or clinched in position. Theplunger Iheadis then released and the coil spring20 "will returnthe plunger toits normal inoperative position. After the riveting device hasbeen removed, the envelope is then sealed in the'usual manner. Thenthe flaps of-the envelopehave been riveted, any attempt totamper witlithe contentsthereof by any unauthorized person will be readily visible and hencethe riveting of an envelope in the manner above set forth will render the Adapted for vertical move-- 'ment; in the sleeve 16 is the plungerlS, a

delivery of the same and the contents thereof in a safe manner.

hileI have specifically described the application of my riveting device in connecat 23, the same being secured tothe bottom face of a suitable handle 2d, the handle 2% ,is provided with a longitudinally extending central pocket-25 which communicates with the bottom'face thereof and arranged in the pocket is a slidable-plunger 26 and a coil spring 27 is disposed betweenthe rear end of the pocket and the inner endof the plunger.

In use, the rivet is placed in position on the article to be'fastened and sealing wax or the like is placed around the rivet,-the stamp is'then pressed into the sealing'wax and the free outer end of the plunger 26 will engagethe'head of the rivet and a pressure'o'n the handle will causethe clinching or upsetting of-therivet-so as tosecurely"fasten.-

the same;

It will thus be seen from the" foregoing descr ption, that a riveting I device has been provided which is simplein construction,

inexpensive, and the parts further so ar 'ranged-asto enable'the same to" be readily adjiustable'to various sizes as is desired and furthermore .the parts; may bereversed or disassembled whenever necessary.

A'device' of this character may be m'anufaoturedata verylo'w cost andwill furtherv be strong and durable; I

VVhile'I have shown'the preferred embodi= mentof my inventiom it is to be understood that various changes in the-size, shape and arrangement of parts; may be resorted to without departing fromthe spirit of the invention andthe scope of theappended claim.

Having thus describedmy'invention, what I cla1m1's: I

,A riveting device comprising acurved lever having the'forward elidthereof provided with a cavity to form an anvil, the rear end thereof having a handle formed thereon, a second lever pivoted on the rear end of the curved lever, -means for. normally holding the pivoted lever 'in frictional engagement with thehandle' on the rear end of the curved lever, said levers compris ng advjusta-ble sections, theffree end of the pivoted lever adaptedto swing into cooperative relation with the anvil endof'the curved lever, and ax-ri'vet receiving and upsetting means associated with'the freeend of the pivoted lever;

In testimony whereofI' alfininy signature. GUSTAVUSJHUBER. 

